Took a PET swipe of HAM6 today. This is after the alignment and balance of the suspensions in HAM4 and HAM5 and before the final installation and alignment work in HAM6.

   Examined the ISI and the OMC under flashlight array for particles. There were no visible concentrations of contaminates on the horizontal or vertical surfaces. I wiped down the top of the ISI and the OMC.

   Took several particle counts while working in and around the chamber.

   Highest particle count in cleanroom before cover off: 16 0.3µm, 0 0.5µm, and 0 1.0µm

   Highest particle count in chamber before cover off: 0 for all sizes

   Highest particle count in chamber just after cover off: 203 0.3µm all other counts in the mid teens

   Highest particle counts in chamber just after wipe down with cover on: 790 0.3µm, 420 0.5µm, 200 1.0µm

   Highest particle counts in chamber after 5 minutes with cover on: 80 0.3µm, 30 0.5µm, 20 1.0µm